44+ How To Paint Concrete Blocks In Garage US. If a garage wall has exposed drywall or a porous surface, such as concrete or cinder blocks, paint it with a quality primer before applying the finish coats. Wait two hours for the painted cinder block to dry.
You can use rollers or brushes to apply the paint.
I'm breaking down the project step by step and providing a list of tools & materials. That's the simple answer, but there's a lot to digest in there. I don't know the name of the existing. Luckily each concrete block was exactly 3 rows high of brick.